Right-click the file and select Get Info . Look under "More Info" for dimensions, codecs (usually H.264 or HEVC), and duration.

Open the video in the Photos app , swipe up, and you will see the resolution, frame rate (fps), and file size. 2. "Feature" as a Software Function

If you saved a Live Photo as a video, it often adopts a timestamped name similar to this. 3. Contextual Content

Since the filename "Video Dec 21, 10 09 54 AM.mp4" follows the default naming convention for or macOS screen recordings, here is how you can identify its "proper features": 1. Technical Metadata (The File's Features)